Auxiliarized fire-alarm box.



N. H. SUREN.

AUXILIARIZED FIRE ALARM BOX.

APPLICATION FILED MAR. 7, 1912.

Patented NOV. 4, 1913.

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AUXILIARIZED FIRE ALARM BOX.

APPLIOATION FILED MAR. 7, 1912.

Patented Nov. 4, 1913.

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APPLICATION FILED MAR. "1, 1912. 1,077,767 Patented Nov. 4, 1913.

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Specification of Letters I ifatent.

PatentedNov. 4, 1913.

Application filed mm; 7.191s Serial no. Beasts.

To all whom it may concern:

a citizen of the United States, residing at Needham, .in the-county of Norfolk and State of Massachusetts, have invented an Improvement in Auxiliariaed Fire-Alarm Boxes, of which the i following is a spec1= This invention relates to auxiliarized fire= alarm boxes, and has forfits object to provide a box with improved auxiliary actu=.

ating mechanism for releasing or otherwise operating it; and also improved means, controlled by the signaling-train, for operating the usual circuit-breaker or swltoh which is included in the auxiliary-circuit; also to provide the box with a single shunt circuit-operating-device, arranged to be op-" erated by means controlled by the opening of the box door, and also by means controlled by the auxiliary actuating-mechanism, whereby the box is included in the signalingnircuit to send its signal when the box door is open, to admit of manual operation of the box,- and also when the box is relewed or otherwise operated automatically by the auxiliary actuating=mechanisnt Figure 1 is a front elevation of an auxiliarized fire-alarm box embodying this invention; Fig. 2 is adetail of the auxiliary actuating-mechanism, the parts being in the position the will occupy when the box is first release Fig. 3 is a detail of the auxiliary actuating-mechanism, the parts being.

in the position the .will occup a shorttime een relea Fig. 4 is a detail of the locking lever for the signalingtrain which may be employed. -Fig. 1s a plan and partial section of the auxiliary actuating-mechanism. Fig. 6 is a sideele-. vation of the auxiliary actuating-mechanism, and mechanism operated by it. Fig. 7 is a detail of the single shunt circuit-operating device. Fig. 8 is a sectional detail showing the means controlled by the box door for operating the shunt circuit-operatingdevice.

adesignates the usual stop-wheel of the train of an ordinary fire-alarm box, having a notched flange a. e the locking-lever, pivoted at e", and a apted to be held in en-' gagement with said stop-wheel by a suitable spring c and to be lifted for the purpose of disengaging said stop-wheel" to release the train; a? the pull arranged to be operated manually to us the lockin' -lever to Be it known that I, Nx'rimx, H. SUREN,, 5

release the signaling-train to sen a signal when the door of the box is open.

The locking lever 'e is provided with anextension e adapting it to be operated by the auxiliary actuating-mechanism. A flat spring e. is attached at one endto said lockin -lever,- the free end of which extends over t e edge of the extension c and said free end has a normal tendency to move away from the extension e when permitted, but is adaptedto be pressed into engagem'ent with the edge of said lever by the meansemployed for movin the lever. The free'end of said spring, as ere shown, terminates approximately at theend ofthe extension e Said extension e and spring the signaling-train, and when the pressure upon said bar is relieved said spring is per mitted to act to move the bar in the opposite direction;

The sliding bar 1? is normally held in an intermediate position, with the spring o pressed into engagement with the edge of the extension e 9, see Fig. 1, and when so disposed pressure upon the end of the bar, tending to move it in a direction toward the left, acts to immediately move the extension and lift the locking-lever. The sliding bar is held in such intermediate position by a pin j on the stop:wheel or some other memr of the signalingtrain, which engages a cam 9" secured to the bar,- alnd said pin is arranged at the rightof the cam to permit movement of the sliding bar in a direction toward the left, and to prevent movement of said bar in the opposite direction until such time as the-pin has been moved out of engagement with the cam by rotation of the stop-wheel, When the sliding bar is moved toward the left and lifts the locking-lever and thereby releases the train, the train starts, and very soon the pin 7' passes by the side of the cam j', and at such moment movement of the sliding bar in the opposite direction is permitted, and is efi'ected by the 10 recovery of the spring e".

Ashere shown the stop wheel is provided with two pins j, forengaging the camp, arranged at diametrically opposite pomt-s, each disposed to engage said cam at the end of which is at the end of four rounds oft-he signal.

When either pin? engages the cam the t e notches in the flange a of the stop-wheel and thereby stop the signaling-train. Hence it will be observed that the sliding bar is re-.

turned to normal by means operated by the signaling tr'ain.

The sliding-bar is adapted to be moved from its normal or intermediate positiontoward the'left to release the signaling-train, by the auxiliary actuating-mechanism, which la, and is subsequently adapted to be moved toward the right by the spring e for the purpose of operating a circuit-operating-device m to 0 en the circuit of the auxiliarymagnet, andthento'be restored to its normal or intermediate position by'the signaling-train. l I

Auxiliary actuating-mechanism, such as may be employed for the purpose. of mov- 4.0 mg the sliding-bar toward the left to-release the signaling-train, will now be described, yet in lieu thereof other forms ma be employed. p r a 1:: represents the auxiliary-magnet,which, as is well known, is adapted to be included in the auxiliary-circuit, and to be operated by circuit-closers arranged in said circuit. The armature k of said magnet is attached to a lever k pivoted at is. The circuit of the auxiliary-magnet is normally open, hence its armature is held normally retracted, see Fig. 1, by the spring la;

The armature-lever has a forward exten sion 1: formed with a shoulder having two steps is, 1:, arranged one above the other, adapted to successively engage a pin n, ex tendedfllaterally from one side of an ac tuating-le'ver '11., pivoted at 72). Said actuating-lever extends downward; and near its lower end bears an anvil n, which is arranged remote from the end of'the'sliding bar 23 but when moved will strike-said bar asuddenblow for the purpose of moving said bar in a direction'toward the left to lift the U locking-lever and the signaling one half a revolution of the stop-wheel,

latter controlled by the auxiliary-magnet the auxiliary-circuit, as shown in Fig. 3,

said pin being arranged with respect to the circuit-breaker so as to engage one member thereof whenthe lever 1s moved m a direction toward the right, as it will be by the spring 6 when said spring is permitted to I act. Said actuating-lever has a spring controlled-latch n pivotallysupported upon it which rests on a pin n, for the engagement of suitable means to move saidlever.

i i A sleeve 0 is mounted on a shaft 0", having a cam 0?, one end of which normally engages said latch 11 see Fig. 1, and exerts there- 'Iupon the pressure of a strong spring 0 which is connected by a link 0 with a short arm 0, secured to said sleeve 0, and when said sleeve is permitted to turn counter-clockwis'e, said cam acts on said latch and swings the actuating-lever n on its'pivot-in a direction toward the left, to correspondingly move the sliding-bar. Said sleeve 0 is held with its spring 0 under tension by its cam engaging the latch a, while the actuating-lever bearing said latch is held by its pin n engaging one of the steps, as k, of theshoulder onthe armature-lever, as rep-' resented in Fig. 1, and said sleeve 0 is re-' leased upon attraction of the armature of the auxiliary-magnet-by the'shoulder k disengaging .the pin-n," and thereby atthe same time releasing the lever n. Said sleeve 0,

when released is turned by the-spring 0 a half revolution or thereabout.. The sleeve 0 is restored to normal by hand, andas here shown, it is provided with a thumb and finger-piece 0, at its outer end for this purpose. The pin 72, is normally held in engagement with the uppermost shoulder is", so that when the armatureis attracted it is immediately disengaged and the actuating-lever permitted to move by the pressure upon its latch of the s ring-actuated cam 0 Thus when the auxi iary-magnet is energized and its armature is attracted the lever n is released and is moved with considerable force by the spring-actuated cam, and the anvil at its lower end is caused to strike the end of' the sliding-bar a sudden blow and to rection, and correspondingly move the actu- 'ating lever n in the opposite direction, causing lts'pin'n to engag'eone member of the circuit-breaker m, and thereby open the circuit ofthe auxiliary-magnet. v

, The actuating-lever m is moved bythe spring e to the extreme end of itsst-rokein a' ectio'n towardthe right, see Fig. 34=&nd.-.""

awyer when in this position the pin it occupies a position to engage the lowermost shoulder of the extension is, and engages said shoulder when the armature returns to its normal retracted position, which it will do as soon as the circuit is opened, either by the circuit-breaker m, or by the circuit-closer which operated the auxiliary-circuit, so that said lever n becomes locked in its position at the extreme right, thereby holding the circuit-breaker m open. lit will remain in this position until reset by hand. The sliding-bar, however, will be returned to its normal or intermediate position by the signaling-train at the end of a signal, leaving the actuating-lever a locked in its abnormal position.

When the sleeve 0 is turned clockwise by hand for the purpose of re-setting it the spring 0 is extended until the short arm 0 is moved far enough for a pin 0 thereon to engage a pin 0 fixed to the shaft, and during such return movement the other end of the cam 0 engages and lifts the latch, thereby permitting said cam to resume its normal position above the latch; and as the sleeve 0 is thus restored a projection 0 thereon engages an extension is on the armature-lever,

ting of the auxiliary actuating mechanism,

and all the parts are in position to be again operated. v 7

As the box is normally shunted, it is neces-. sary that the shunt-switch be opened when the train is released by the auxiliary actuating-mechanism, and also when the boxdoor is opened, for the purpose of operating the box manually, and herein a single shunt switch is employed, adapted to be operated by two separate means whereby these results may be accomplished. Referring particularly to Figs. 7 and 8 g'represents a shunt-lever, pivoted at g, and carrying the movable member 9 of a knife-switch, which. isadapted to be operated to engage thestationary member 9 of sald knife-switch. Said knife-switch controls the shunt-circuit of-the box, and when opened the box is included directly in the circuit and when closed is included in a shunt-circuit.

The shunt-lever g has an extension 9 adapted to be engaged by one arm 9 of a bell-crank lever, pivoted at g, the other arm g of said lever being extended into the path. of movement of a pin 6 prqectmg laterally from the locking-lever .e,'so thatwhen said locking-lever is lifted to release the signaling-train, said'bell crank-lever will be operated to move the shunt-lever to open the switch. Said shunt-lever also has arranged on it a forward extension 9 which is inclined, and arranged to extend into the path of movement of'a plunger h, arranged on a plunger-rod it, which is adapted to slide in and out in bearings provided for it. The inner end of said plunger-rod bears against a spring b and its outer end ex tends forward far enough to be engaged by the door of the box, so that when the box door is closed said plungerrod will be pushedinward and the shunt-lever moved by its spring 9 to close the knife-switch unless said switch is being controlled by the train, as heretofore described, but when the box door is opened said plunger-rod is moved outward by the spring b and the shunt-lever is engaged by it and moved to open said switch.

Providing two separate means to operate the shunt-lever is of particular importance 111 connection with an auxiliariz'ed fire-alarm box, as in such case the signaling-train is adapted to be released by an auxiliary-magnet while the box-door is closed for the purpose of sending an alarm and the shuntcircuit is controlled by the train, and said train is also adapted to be operated manually when the box door is open, to send an alarm, and the shunt-circuit is controlled by the opening of the door, and also by the train, the-latter in case the door is closed before the signal has been sent.

Referring to Fig. a, the lockinglever has arranged in connection with it a pair of resilient contact-members adapted to form a circuit-controller for a ground circuit, which may be closed when the locking-lever is lifted to release the signaling train.

I claim 1. In an auxiliarized fire-alarm box, the combination of a signaling-train having a lockirigdever, a movable member engaging said locking-lever, an actuating-lever ar ranged remote from said member and adapted when released to strike said member a blow to suddenly move it to lift said lockinglever, a detent-lever normally engaging said actuating-lever controlled by the auxiliarymagnet and spring-actuated means for moving said actuating-lever when released by said detent-lever, substantially as described.

2. In an auxiliarized fire-alarm box, the combination of a signaling-train having a locking-lever, a sliding bar engaging said locking-lever, a pivoted actuating-lever arranged remote from the end of said sliding bar and adapted when released to strike said bar to lift the locking-lever, a detent-lever normally engaging said actuating-lever, controlled by the auxiliary-magnet, and springactuated means for moving said actuating lever whenreleased by said detent-lever, substantially as described.

8. In an auxilierized firs-alarm box, the oom ninetion of .e signaling-5min having a locking-lever, a pivoied actuating-lever for said locking-lever bearing an anvil for striking a blow to sucldenly move said lockinglever, spriiigoctuaoed means normally ongaging said ooiuatinglevei' for mov'ng it, adetent-ievsr ormally engoeing said ootw sting-lever to liolcl it with the springootw atsd means set in condition to operate electro-magnet and armature therefor controlling said (i tent-lever, substantially as described.

4. In on auxiliorized fire-alarm box, the combination of e signolingiroin, a pivoted lookinglever, pivoted actuating-leverhovivotecl latch, e cam engaging said. latch, a shaft beazi' soi-"l com, a s ring connected with said sh, for turning it in one disepiion, and means COEIHQCiJQd Wiilo soid shaft for resetting is (ietent-iever engaging said actuotingloverto hold it with the spring operated cam-shaft set in condition to OPEIili-Q, and. on' eleoi'ro-ziisgnet arrangoii to control the oigeration of said detent-lever, subsiontially as described.

5. In on oox'lierized box, the. combination of signaling-mom having a looking-lever on scouting-lover for said looking-lever, a (latent-lever controlled by theouxilieiy-msgnet "for normally holding said. aotuotisgiever in intermeiiiate posiiion, springootsoiezl means for moving said actuatinglever in one diseotioio when released by ioe tieientlever to operate the lockingleveg a eirouit-breokor for the s1ixiliei'y-oiroui, an means for subsequently moving said scoutin -fiver in the opposite direction to opsro'iie soici ciroui -breslzer, substantially as ilesoribed,

6. In an suziiliorizscl fire-211mm box, the combination of signaling-15min having a looking-lever, on ooiusiinglever for saicl loeiiing lever, {latent-lover controlled by bhe auxiliary-magnet normally holding saicl eoIuating-lever in on intennedi'ate posiiion, spring-actuated means for moving said actuating-lover in oneilireotion when released by the detest-lever to operate she locking-lever, o cirouii-"oreaker for the auxil iary-oirouit and means controlled by she sigpaling-train for soiasequenily moving soisl actuating-lever in the opposite direction to operate said ClTC'l1l7I-l)1i-Efiil' substsniislly as described.

'31 in an auxiliarizeel firsslorm box the combination of o sigi'ioling troin having s looking-lever setuoiing-ievor for said looking-lever, a deteoolevm' (:GliliiOllfid by the auxiliary-magnet l'laVlHg twosnga-gingportioos, one for noimslly holding said m susiing-lever in an iniesmezliste position and the other for holding said ocituaiing-lever in on sbnormsl position, spring-actuated means for moving said actuating-lever in ome?" one direction Wiifil'l released by the detentlever to operate the locking-lever a circuitbroalier for the auxiiiar -o1rouit, 136i means for subsequently moving actuating lover in the op oosite :ii ction into ongogo men; with the zieient-ievor "no operate said circuitiorsoizer si ibs'tentioliy as :iiesoribei 8. an aux lode/sci vfii'o-alarm 302:, the combination 01 o sigoalin -ti'oio having 2, locking-lever, an actuting-lever' for said locking-lever, o diatoms-lever controlled by the'suxiliery-mog'oet having two siigagirogportions, one for normally holding ssiol actuating-lever in en rmeciioie position, and the other for holdi'ig: sai'v actuating-- lever in an oboomml position spring-actuaterl means for mo'v' actuating-lever one direction when .vleasecl by the debentlever to operate the looking-lever, a circuitireaker the suzilisi'y-eiso it and means for subsequently moving so... actuatinglever in the o p oosi'so illlfiiCiBlG-H m'io engageth'i-lio dotenbiever lo operate said moving release die ciz'ouit-bi'eekei', means for assuming-levelg to assume its latent-lever to momentarily normal inaei'meolsto position su'ostsntioily as clesoi'ilaeclu 9, In an aiuziiisi'iiieci combination of a signal lookinglever on sstu fies for said lookinglever, a clot 791 controlled by theauxiliary-magma ing engagingporcioos, one for nosmi 37 holding so mating-lever in an intermediate position and the other for hiding ssi sotiioiingleverin an abnormal position ring-mono etod means for moving s king-lever in one direction z-eiooserl 1'oy firs-alarm box, the rom having e 1711 dotozmlevei' to operate she loo ing-lever, o oi?- ouii-brseker aim she auxiiisry-oirouit, and means for subs gently moving said. actuating-lover in the opposite direction into engsgement with the ileteiit-iever to operate said circuit-breaker, means soonest oil "with the spring-actuated means for the sot-noting-lever for moving said detoobiever when said spring-- ousted mean is being reset, to mom-211ml release said actuatingiever', permitting it to resume its normsl intermediate position, su'bssomia-ily as described.

10 In an euxilisrizecl fireolorm box, the combination of o signeliiig-troin loo-wing o looking-lover, o movolzie-member engaging said looking-lever, normeily held in on intermediate yosition, ousziiiory ootustiiig mechanism-Echoing s11 actuating-lever for moving said member in one slirsotion operate the loolim -ieverto release the train, a 'oirouii-bseakei' for the suxiliory eii'ouii; adopted to be operated by said actuatinglever moons controlled by the twin ioi' moving said movable-member in the opposi te direction to move obe sotusting levor to operate said circuit-breaker, and means operated by the train for returning said member to and for holding it in its normal position, substantially as described.

11. In an auxiliarized fire-alarm box, the combination of a signaling-train having a locking-lever, a bar engaging'said lockinglever, normally held in any intermediate position, auxiliary-actuating mechanism in cluding an actuating-lever for moving said bar in one direction to operate the lockinglever, a circuit-breaker for the auxiliary-circuit, adapted to be operated by said actuating-lever, means for moving said bar in the opposite direction to move'the actuatinglever to operate said circuit-breaker, and means operated by the signaling-train for returning said bar to'and for holding it in its normal intermediate position, substan-.

tially as described.

12. In an auxiliarized fire-alarm box, the combination of a signaling-train having a locking-lever, :a bar engaging said lockinglever, normally held in an intermediate position, auxiliary actuating-mechanism including an actuating lcver for moving said bar in one direction to operate the lockinglever, a. circuit-breaker for the auxiliarycircuit, adapted to be operated b said actuating-lever, a spring on the ocking-Iever for moving said bar in the opposite direction to move the actuating-lever to operate said circuit-breaker, and means operated by the signaling-train for returning said bar to and for 'holdinv it in its intermediate position, substantially as described.

13. In an auxiliarized fire-alarm box, the combination of a signaling-train having a locking-lever, a bar engaging said lockinglever, normally held in an intermediate position, auxiliary actuating-mechanism including an actuating-lever for moving said bar in one direction to operate the lockinglever, a circuit-breaker for the auxiliarycircuit, adapted to be operated by said actuating-lever, means for moving said bar in the opposite direction to move the actuating-lever to operate the circuit-breaker, a pin on one of the train-wheels arranged to engage the bar to return said bar to and hold it in its normal intermediate position,

substantially as described. I

14. In an auxiliarized fire-alarm box, the

combination of a signaling-train, a lockinging-train, and means operated by the opening of the box-door for also operating said switch-lever to open the shunt-switch, substantially as described.

15. In a signal box, a shuntswitch for the box, a switch-lever, means operated by the locking-lever for moving said switch-lever to open the shunt switch when said locking-lever is operated to release the signaling-train, and means operated by the opening of the box door for also operating said switch-lever to open the shunt-switch, substantially as described.

16. In a signal-box, the combination of a shunt-switch for the box, a switch-lever, means operated by the locking-lever for the signaling-train for moving said switch-1ever to open said switch, and a plunger-rod.

controlled by the box door, arranged to move said switch-lever to open'said switch, substantially as described.

17. In a signal-box, the combination of a shunt-switch, a switch-lever, a bell-crank lever operated by the locking-lever for the signaling-train to move said'switch -lever and open the shunt-switch, and means operated by the opening of the box door for moving said switchleve'r to operate the shunt-switch, substantially as described.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

NATHAN H. SUREN.

Witnesses:

CHARLES H. MoUL'roN, EDWARD J. COLEMAN. 

